Is it possible to build a 4.0 audio system using my Bluetooth speakers as rear speaker and two normal cabled stereo speakers (or another pair of bluetooth speakers) as front?
Which program I have to use?

In general: is it possible to split a 4.0 or 5.1 signal in the single channels and send them to multiple devices?

It would be neat but I doubt it. I'd recommend digging deeper into pulseaudio.
–
con-f-useAug 20 '12 at 15:43

Even if this was possible, wouldn't the different sets of speakers be in different sync, due to differences in chipset latencies and especially over bluetooth? You would hear a kind of echo, I presume.
–
taneliAug 28 '12 at 10:52

3 Answers
3

strictly speaking no. a single sound card processes the data synch's all the channels and makes front left x% stronger and rear right x% weaker so that the explosion on the front left of the screen sounds right. or the reverse when a jet flies over from the rear.

you can make a psudo setup but if you want good sound get a proper card and speakers. a well equiped and setup system can sound amaizing. I got an omega sound card for the wifes pc because she watches a lot of dvd's even on the cheezy speakers we have it sounds decent. when I got that omega I was quite suprised how much a difference a good sound card makes. I was used to the creative labs audigy.